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Zeroing the CTi-M

Posted: Sat Nov 10, 2018 12:36 am
by zap
I just received my CTi-M a few weeks ago. I haven't had many opportunities to use it yet, but I've gotten some good waveforms so far.

The only problem I've had is that when zeroing with the button on the CTi-M, it's still reading ~.1a on the screen. That's with the CTi-M in open air, not on a wire, and happens every time the button is pressed. Is there anything I can adjust on the CTi-m, or in the software to get that reading closer to zero?

Re: Zeroing the CTi-M

Posted: Wed Nov 14, 2018 1:20 pm
by Kelvin
Is there anything I can adjust on the CTi-m, or in the software to get that reading closer to zero?
Yes, you can adjust the CTi-M by yourself.
To do this, push apart the wire and remove the upper jaw.
Accurately adjust the required accuracy with a trimmer resistor, time to time pressing zeroing button and observing zero line on the screen.

Re: Zeroing the CTi-M

Posted: Fri Nov 16, 2018 3:24 pm
by zap
That worked great, thank you!

Re: Zeroing the CTi-M

Posted: Fri Jan 18, 2019 12:26 pm
by Jorge S. Viera
Hola colegas!!! Me sucede lo mismo.
La linea cero me queda por encima de cero.

Tengo otra consulta con respecto a la Pinza CTI-M

1) Cuando realizamos la comprobación de bombas de combustible donde usamos la pinza amperimetrica y un canal para voltaje, hay algún panel analizador que ya este pronto para esta función????

Descargue algunas algunos scripts de bomba de combustible de la pagina para ver los controles y me di cuenta que ya tenían marcadores. Por eso pensé que ya había echo algún panel analizador ya pronto.

2) Al seleccionar la pinza amperimetrica en el canal correspondiente, me aparecen tres opciones de selecion de pinza CTI-M. La que mejor me funciono fue la ultima de abajo CTI-M. Esto es asi??? Cual seria la correcta? Y las otras dos opciones para que servirían???
pinza CTI-M.png
pinza CTI-M.png (99.15 KiB) Viewed 1388 times
???

Re: Zeroing the CTi-M

Posted: Fri Jan 18, 2019 1:02 pm
by Jorge S. Viera
Ultima pregunta.
La medicion se realiza seleccionando 30x1 o 6x1????

Re: Zeroing the CTi-M

Posted: Fri Jan 18, 2019 4:40 pm
by Jorge S. Viera
que significa cuando la luz de la pinza esta parpadeando??? O cuando la mantenes el boton zero y queda parpadeando??

Re: Zeroing the CTi-M

Posted: Mon Jan 21, 2019 2:00 pm
by Kelvin
Hello,
Cuando realizamos la comprobación de bombas de combustible donde usamos la pinza amperimetrica y un canal para voltaje, hay algún panel analizador que ya este pronto para esta función????
Can you tell me what analyzer panel do you need?
I don't understand this question.
Esto es asi??? Cual seria la correcta? Y las otras dos opciones para que servirían???
These two settings (-20A... +50A (100mV/A) and -4A.... +10A (500mV/A)) are used for previous model of CTi current clamps.
Now you should select CTi-M current clamps.
La medicion se realiza seleccionando 30x1 o 6x1????
You should select 30x1 mode.
que significa cuando la luz de la pinza esta parpadeando??? O cuando la mantenes el boton zero y queda parpadeando??
When LED blinks, it means that clamps can not calibrate. Maybe there is any current flowing through a wire inside the jaws.
You should calibrate current clamps without any wires inside the jaws.

Re: Zeroing the CTi-M

Posted: Sun Jan 27, 2019 10:29 am
by BellaWitt

Re: Zeroing the CTi-M

Posted: Sun Jan 27, 2019 3:08 pm
by zap
When LED blinks, it means that clamps can not calibrate.
Do you mean the white LEDs inside the jaws? I've never noticed them blinking before.

Re: Zeroing the CTi-M

Posted: Sun Jan 27, 2019 4:57 pm
by Kelvin
Do you mean the white LEDs inside the jaws?
Yes, two white LEDs inside the jaws.